We know that carbon has the unique property to form bonds with other atoms of carbon. Now observe the below given chain of carbon atoms and answer the questions.
`{:(" |"," |","|"),(-C,-C-,C-),(," |",),(,-C-,),(," |",):}`
Give reasons for this unique property of carbon.

Options

A. Catenation property and tetravalency
B. Isomerism and covalency
C. Allotropy and bivalency
D. Homologous series and covalency

Explanation

### Step-by-Step Solution:

1. **Understanding Carbon's Unique Properties**:
- Carbon has the ability to bond with itself and other elements. This is due to its electronic configuration, which allows it to form stable bonds.

2. **Catenation**:
- The property of carbon to form long chains of carbon atoms is known as **catenation**. This occurs because carbon atoms can bond with each other to create various structures, such as chains, rings, and branched structures.

3. **Tetravalency**:
- Carbon has four valence electrons, which means it can form four covalent bonds with other atoms. This property is referred to as **tetravalency**. Carbon can achieve this by forming:
- Single bonds (sharing one pair of electrons),
- Double bonds (sharing two pairs of electrons), or
- Triple bonds (sharing three pairs of electrons).

4. **Stability of Carbon Compounds**:
- The bonds formed by carbon are generally strong and stable, allowing for a vast array of organic compounds. This stability is crucial for the formation of complex molecules necessary for life.

5. **Conclusion**:
- The unique properties of carbon, namely catenation and tetravalency, allow it to form a diverse range of compounds, making it essential for organic chemistry and life itself.